EP 1642788 A3 20070103 - Seat belt retractor and seat belt device using the same
Title (en)
Seat belt retractor and seat belt device using the same
Title (de)
Gurtaufroller und Gurtvorrichtung mit einem solchen Gurtaufroller
Title (fr)
Rétracteur de ceinture de sécurité et dispositif de ceinture de sécurité avec un tel rétracteur
Publication
Application
Priority
JP 2004291289 A 20041004
Abstract (en)
[origin: EP1642788A2] To provide a seat belt retractor in which two winding performances, i.e. winding a belt rapidly and winding the belt with high torque are achieved, while reduced power consumption of a motor and simplified control of the motor are also achieved. A clutch gear 43 is meshed with a carrier gear 31 by rotation of a motor in the normal direction, i.e. the belt winding direction in a state that a clutch pawl 49 is not engaged with an internal gear 30. Accordingly, a low reduction ratio power transmission mode is set so that a seat belt is wound up at a high speed and with low torque. As slack of the seat belt is removed and the belt load increases, the clutch pawl 49 becomes possible to be engaged with the internal gear 30. As the motor current increases and exceeds a preset value, the motor rotates reversely so that the clutch gear 43 separates from the carrier gear 31. Therefore, a high reduction ratio power transmission mode is set so that the belt is wound up at a low speed and with high torque (Figs. 5(a)-5(f)).
IPC 8 full level
B60R 22/46 (2006.01)
CPC (source: EP US)
B60R 22/46 (2013.01 - EP US); B60R 22/4676 (2013.01 - EP US); B60R 2022/287 (2013.01 - EP US); B60R 2022/444 (2013.01 - EP US); B60R 2022/4666 (2013.01 - EP US); B60R 2022/468 (2013.01 - EP US)
Citation (search report)
- [PX] WO 2005039942 A1 20050506 - DAIMLER CHRYSLER AG [DE], et al
- [PX] EP 1475282 A1 20041110 - DELPHI TECH INC [US]
- [X] US 2001045483 A1 20011129 - TANAKA KOJI [JP], et al
- [X] GB 2304540 A 19970326 - TAKATA CORP [JP]
- [X] DE 4112620 A1 19920521 - DAIMLER BENZ AG [DE]
- [X] EP 1022201 A1 20000726 - BREED AUTOMOTIVE TECH [US]
- [A] JP 2002104135 A 20020410 - TAKATA CORP
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1642788 A2 20060405; EP 1642788 A3 20070103; CN 1765666 A 20060503; JP 2006103453 A 20060420; US 2006071111 A1 20060406; US 7380740 B2 20080603
DOCDB simple family (application)
EP 05018388 A 20050824; CN 200510113419 A 20051008; JP 2004291289 A 20041004; US 23186305 A 20050922